MLB matchup analysis
Angels vs Nationals Prediction, Odds and Model Pick
Saturday, September 12, 2026 at Nationals Park · 4:05 PM ET
LyDia decision: Pass on Angels vs Nationals
The case for Los Angeles Angels
The case for Washington Nationals
Why it is not official
Why the setup score is what it is
Why the price is what it is
Read the full model output
The combined Lab Rating did not clear the official threshold.
Final result
Angels 5, Nationals 6
How the analysis held up
Washington Nationals won. LyDia's model favored the other side.
Andrew Alvarez (No clear pitching-plan edge), the starter LyDia's pitcher score favored, actually outpitched Walbert Ureña: 7.0 IP, 0 ER (0.00 ERA) against 6.0 IP, 4 ER (6.00 ERA). The edge held up.
The Washington Nationals bullpen was flagged as elevated risk pregame (Tired). In relief it actually allowed 5 earned runs over 3.0 innings (15.00 ERA) — the risk read showed up.
Likely driver: Walbert Ureña, the pick's own starter, was rocked for a 6.00 ERA, and the opposing starter (0.00 ERA) was sharp when the read expected an edge the other way.
Game information
| Matchup | Los Angeles Angels at Washington Nationals |
|---|---|
| Date | Saturday, September 12, 2026 |
| First pitch | 4:05 PM ET |
| Venue | Nationals Park |
| Starting pitchers | Walbert Ureña vs Andrew Alvarez |
| Weather | Game-time forecast: 76°F, 7% precipitation chance, 9 mph wind from E. |
Starting pitcher matchup
Full Pitcher Matchup Tool →| Metric | Angels | Nationals |
|---|---|---|
| Pitching plan | Traditional starter | Traditional starter |
| Expected innings | 5⅓ | 5 |
| Throws | R | L |
| LyDia pitcher score (higher is better) | 71 | 68 |
| ERA (lower is better) | 2.88 | 3.35 |
| WHIP (lower is better) | 1.24 | 1.27 |
| K/9 (higher is better) | 8.6 | 8.7 |
| K-BB% (higher is better) | 11.0% | 12.2% |
| K% (higher is better) | 22.6% | 23.2% |
| BB% (lower is better) | 11.6% | 11.0% |
| BB/9 (lower is better) | 4.4 | 4.1 |
| HR/9 (lower is better) | 0.6 | 0.4 |
| Ground-ball rate | 57.6% | 56.9% |
| Fly-ball rate | 42.4% | 43.1% |
Pitcher edge: LyDia gives Walbert Ureña a 3-point edge over Andrew Alvarez, driven mainly by expected innings (5.4 vs 5.0) and ERA (2.88 vs 3.35).
How to read this: the scorecards above name the starters; every number lives in this table.
Strikeout Projections Full strikeout projections →
Same data source as the Pitcher Matchup Tool, where every starter on the slate is compared side by side.
Recent form
Full Stats page →Angels are 4-6 in their last 10 and averaging 3.5 runs per game over the last 15 days; Nationals are 3-7 in their last 10 and averaging 4.3 runs per game over the last 15 days. On the season Nationals carry the better run differential per game (+0.01 against -0.51).
| Metric | Angels | Nationals |
|---|---|---|
| Last 10 | 4-6 | 3-7 |
| Last 10 by venue (away team on the road, home team at home) | 4-6 on the road | 7-3 at home |
| OPS, last 15 days | 0.644 | 0.673 |
| wOBA, last 15 days (hot/cold read) | 0.289 | 0.298 |
| Runs per game, last 15 days | 3.5 | 4.3 |
| K% last 15 days (lower is better) | 27.0% | 24.6% |
Last 15 days only. Hot and cold streaks for all 30 teams live on the Stats page.
30-day offense
Full offense tool →| Last 30 days | Angels | Nationals |
|---|---|---|
| OPS | 0.651 (-0.029 vs szn) | 0.658 (-0.091 vs szn) |
| Runs per game | 3.93 (-0.121 vs szn) | 3.96 (-1.142 vs szn) |
| wOBA (model offense input) | 0.291 (-0.012 vs szn) | 0.292 (-0.037 vs szn) |
| K% (lower is better) | 25.7% | 23.6% (+1.7% vs szn) |
Over the last 30 days the Nationals have been the better offense, 0.292 wOBA to 0.291. They are cooling off against their own season line (-0.037 wOBA). Angels are striking out at 25.7% over the window — something the opposing starter can lean on.
Season profile
Full Stats page →| Metric | Angels | Nationals |
|---|---|---|
| Record | 56-91 | 68-81 |
| Run differential / game (team quality) | -0.51 | +0.01 |
| Runs scored / game (offense, season) | 4.05 | 5.11 |
| Runs allowed / game (defense, season, lower better) | 4.55 | 5.09 |
| Season OPS | 0.681 | 0.749 |
| K% season (lower is better) | 25.3% | 21.9% |
| OPS vs opposing hand (season) | 0.695 | 0.737 |
Season-long team quality, not recent form. Run differential and run environment come from the season standings; splits for all 30 teams live on the Stats page, including the run environment table.
The Map
Full interactive map →Every team on today's slate, on any two axes you pick. Angels and Nationals are highlighted.
Bullpen matchup
Full Bullpen Fatigue Index →Risk is what the model actually uses: fatigue blended with how well the pen has pitched. High fatigue with high efficiency is a tired pen that is still getting outs.
| Metric | Angels | Nationals |
|---|---|---|
| Fatigue | 6.1/10, Normal | 5.7/10, Normal |
| Efficiency | 5.7/10, Effective | 2.0/10, Struggling |
| Combined risk | 5.8/10, Normal | 7.2/10, Tired |
| Relief innings, last 7 days | 17.0 | 21.0 |
| Back-to-back arms | 4 | 5 |
| 7-day ERA | 3.18 | 7.71 |
| 7-day WHIP | 1.24 | 1.90 |
Fatigue measures workload. Efficiency measures recent run prevention. Combined risk is what the moneyline and totals systems use.
Run total projection
Full Totals Projections →The current model and market total cannot be compared yet. Team totals remain research-only until their graded sample is established.
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